Last



June 7 1927. A

H. A. TOULMIN, JR

LAST

Filed Sent. is, 1926 INVENTOR. awhvww A TTORNEYS.

Patented June 7, 1927.

UNITED STATES HARRY A. '1.

, 1,631,709 PATENT OFFICE.

OULMIN, JR., F DAYTON, OHIO, ASSIGNOR'TO THE VULCAN LAST COM- IPANY, 0F PORTSMOUTH, OHIO, A CORPORATION OF OHIO.

' LAST.

Application filed September My invention relates to lasts.

It is the object of my invention to provide a lasthaving stiff pins, a stiff nonresilient link, and means for yieldingly compensating for the shortening of the distance between pin supports when the last parts pass over dead center.

It is my object to secure the advantage of the cheap stilt pins and the simple cheap in stifi link while, at the same time, have a yielding connection which will maintain the parts in expanded or collapsed position and which will'yieldingly' resistthe movement of the parts from one position to the other.

Referring to the drawings:

Figure 1 isv a side elevation of the last broken away to show the arrangement. of the link pins and resilient supports with the. last in expanded position;

Figure 9. is similar view showing the last parts in collapsed position;

Figure 3 is a plan view of the link pins and spring supports for the pins;

Figure a is a section on the line H oi Figure 3;

Figure 5 Figure 3;

Figure 6 is a top pins and resilient supports ports compressed as they parts of the last are passing over center.

Referring to the drawings in detail, 1 is is a section on the line 5-5 of plan view of the link showing the supappear when the dead the toe portion of a last having a rear abutment 2, an arcuate cutaway portion 3 and a rear toe face 1. 5 is a heel part of the last having a cooperating abutment 6 adapted to engage the abutment 2 oi' the toe part.

7 is an arcuate knuckle or projection from the heel part fitting within the arcuate groove 3 of the toe part to form a hinge. The face 8 of the heel part is cut away to permit the collapsing of the last. The toe and heel parts are cut away in grooves 9 and 10 to permit of the location of the link 11 therein. They are also provided with apertures to receive the pins 12 on which the link 11 is mounted. These pins rest against plate spring supports, generally designated 13, located in the slots 14 in the fore and aft toe and heel portions of the last.

These plates consist of fiat portions 15 which rest against the wood of the toe and heel parts and arcuate portions 16 which 13, 1926. Serial No. 135,049.

are adapted to flex and be compressed by the pressure off the pins 12 thereon. The link 11 passes through a slot 17 in each one of these plate springs 13 ivliilethe springs themselves are provided with semi-circular depressions 18 for receiving and positioning the pins 12. Thus, when the parts of the last pass over dead center, the spring plate supports will be flexed and compressed, and, because of their resiliency, will tend to hold the last parts in either-collapsed or expanded posltion.

It will be understood that itis much cheaper to provide stifl', nonsresilient pins 12 than the resilient pins heretofore used in the art, and it is cheaper to use a stitt, simple, straight link 11 than the resilient links sometimes used in this art. In many instances, it is easier to provide a rectangular aperture for the reception of such springs 18 than to drill holes tor the pins 12 accurately, although it is desirable to ac curately locate the spaces for the pins 12 in this last. The primary purpose behind this invention is to provide a very cheap construction which may be manufactured with workmen of the least skill so as to provide last that can be quickly assembled out of the cheaper and simpler materials, which will, at the same time, provide the same result as the more expensive last by reason of the novel construction embodied herein.

It will be understood that I desire to coinprchend within my invention such modifications as may be necessary to adapt it to varying conditions and uses.

Having thus fully described my invention, what 1 claim as newand desire to secure by Letters Patent, is

1. In a last, a toe part and a heel part adapted to rock upon one another, transverse pins located in said parts so arranged that in the extreme positions of said parts a line drawn between the centers of said pins will be to one side of the center of movement of said parts, yielding supports for said pins located therebetween, a rigid link connecting said pins whereby when the parts move from one position to the other said yielding supports will-be actuated and said link will pass'over the center of movement of said parts, and means on said yielding supports for positioning said pins.

2. In a last, a toe part and a heel part adapted to rock upon one another, transverse pins located in said parts so arranged that in the extreme positions of said parts a line drawn between the centers of said pins will be to one side of the center of movement of said parts, yielding supports for said pins, a rigid link connecting said pins whereby when the parts move from one I position to the other said yielding means will be actuated and said link will pass over the center of movement of said parts, and

' means on said yielding means for position ing said pins, said yielding means having apertures for permitting said link to pass spring inserted in each of said slots between said pins and adapted to engage the inner side of each of said pins, said pins being rigid, and a rigid link connecting said pins passing through said plate springs.

4t. In a last, a toe part and a heel part adapted to rock upon one another, pins mounted therein so that a line drawn between their centers will pass over the center of movement of said parts when the parts are moved, said toe and heel parts haying rectangular slots adjacent said pins, a plate spring inserted in each of said slots between said pins and adapted to engage the inner side of each or said pins, said pinsheing rigid, a rigid link connecting said pins pass-fv ing through said plate springs, and means on said plate springs for'positioning said pins with respect thereto. i

In testimony whereof, I aiiix my signature V HARRY A. TOULMIN, JR. 

